<template>
  <vk-data-goods-sku-popup ref="skuPopupRef" v-model="isShowSku" :localdata="localdata" :mode="skuMode"
    add-cart-background-color="#FFA868" buy-now-background-color="#27BA9B" :actived-style="{
      color: '#27BA9B',
      borderColor: '#27BA9B',
      backgroundColor: '#E9F8F5',
    }" @add-cart="onAddCart" @buy-now="onBuyNow" />

  <scroll-view scroll-y class="viewport">
    <!-- 基本信息 -->
    <view class="goods">
      <!-- 商品主图 -->
      <view class="preview">
        <swiper circular @change="onSwiperChange">
          <swiper-item v-for="src in goods?.mainPictures" :key="src">
            <image @click="onClickImg(src)" mode="aspectFill" :src="src" />
          </swiper-item>
        </swiper>
        <view class="indicator">
          <text class="current">{{ curSwiperIndex + 1 }}</text>
          <text class="split">/</text>
          <text class="total">{{ goods?.mainPictures.length }}</text>
        </view>
      </view>

      <!-- 商品简介 -->
      <view class="meta">
        <view class="price">
          <text class="symbol">¥</text>
          <text class="number">{{ goods?.price }}</text>
        </view>
        <view class="name ellipsis">{{ goods?.name }} </view>
        <view class="desc"> {{ goods?.desc }} </view>
      </view>

      <!-- 操作面板 -->
      <view class="action">
        <view class="item arrow" @click="openSkuPopup(SkuModeEnum.BOTH)">
          <text class="label">选择</text>
          <text class="text ellipsis"> {{ selectedSpecs }} </text>
        </view>
        <view class="item arrow" @click="openPopup('address')">
          <text class="label">送至</text>
          <text class="text ellipsis"> 请选择收获地址 </text>
        </view>
        <view class="item arrow" @click="openPopup('service')">
          <text class="label">服务</text>
          <text class="text ellipsis"> 无忧退 快速退款 免费包邮 </text>
        </view>
      </view>
    </view>

    <!-- 商品详情 -->
    <view class="detail panel">
      <view class="title">
        <text>详情</text>
      </view>
      <view class="content">
        <view class="properties">
          <!-- 属性详情 -->
          <view class="item" v-for="item in goods?.details.properties" :key="item.name">
            <text class="label">{{ item.name }}</text>
            <text class="value">{{ item.value }}</text>
          </view>
        </view>
        <!-- 图片详情 -->
        <image mode="widthFix" v-for="src in goods?.details.pictures" :key="src" :src="src"></image>
      </view>
    </view>

    <!-- 同类推荐 -->
    <view class="similar panel">
      <view class="title">
        <text>同类推荐</text>
      </view>
      <view class="content">
        <navigator v-for="item in goods?.similarProducts" :key="item.id" class="goods" hover-class="none"
          :url="`/pages/goods/goods?id=${item.id}`">
          <image class="image" mode="aspectFill" :src="item.picture"></image>
          <view class="name ellipsis">{{ item.name }}</view>
          <view class="price">
            <text class="symbol">¥</text>
            <text class="number">{{ item.price }}</text>
          </view>
        </navigator>
      </view>
    </view>
  </scroll-view>

  <!-- 用户操作 -->
  <view class="toolbar" :style="{ paddingBottom: safeAreaInsets?.bottom + 'px' }">
    <view class="icons">
      <button class="icons-button"><text class="icon-heart"></text>收藏</button>
      <button class="icons-button" open-type="contact">
        <text class="icon-handset"></text>客服
      </button>
      <navigator class="icons-button" url="/pages/cart/cart2">
        <text class="icon-cart"></text>购物车
      </navigator>
    </view>
    <view class="buttons">
      <view class="addcart" @click="openSkuPopup(SkuModeEnum.CART)"> 加入购物车 </view>
      <view class="buynow" @click="openSkuPopup(SkuModeEnum.BUY)"> 立即购买 </view>
    </view>
  </view>

  <uni-popup ref="popupRef" type="bottom" background-color="#fff">
    <ServicePanel v-if="popupName === 'service'" @close="popupRef?.close()" />
    <AddressPanel v-if="popupName === 'address'" @close="popupRef?.close()" />
  </uni-popup>
</template>

<script setup lang="ts">
import { getGoodsByIdAPI } from '@/services/goods'
import type { GoodsResult } from '@/types/goods'
import { onLoad } from '@dcloudio/uni-app'
import { computed, ref } from 'vue'
import ServicePanel from './components/ServicePanel.vue'
import AddressPanel from './components/AddressPanel.vue'
import type { SkuPopupEvent, SkuPopupInstance, SkuPopupLocaldata } from '@/components/vk-data-goods-sku-popup/vk-data-goods-sku-popup'
import { postMemberCartAPI } from '@/services/cart'

// 获取屏幕边界到安全区域距离
const { safeAreaInsets } = uni.getSystemInfoSync()

const query = defineProps<{
  id: string
}>()

const goods = ref<GoodsResult>()
const queryGoodsById = async () => {
  if (!query.id) return
  const result = await getGoodsByIdAPI(query.id)
  goods.value = result.result
  // 构建SKU数据
  localdata.value = {
    _id: goods.value.id, // 商品ID
    name: goods.value.name, // 商品名称
    goods_thumb: goods.value.mainPictures[0], // 商品图片
    spec_list: goods.value.specs.map(spec => { // 规格列表
      return {
        name: spec.name,
        list: spec.values
      }
    }),
    sku_list: goods.value.skus.map(sku => {
      return {
        _id: sku.id, // SKU ID
        goods_id: goods.value!.id, // 商品ID
        goods_name: goods.value!.name, // 商品名称
        image: sku.picture, // 商品图片
        price: sku.price * 100, // 组件规定：价格必须×100
        stock: sku.inventory, // 库存
        sku_name_arr: sku.specs.map(item => item.valueName)
      }
    })
  }
}

const curSwiperIndex = ref(0)
// 轮播图图片变化后
const onSwiperChange: UniHelper.SwiperOnChange = (e) => {
  curSwiperIndex.value = e.detail.current
}

// 点击图片后
const onClickImg = (imgUrl: string) => {
  uni.previewImage({
    url: imgUrl,
    urls: goods.value!.mainPictures
  })
}

const popupRef = ref<{
  open: (type: UniHelper.UniPopupType) => void,
  close: () => void
}>()
const popupName = ref<'address' | 'service'>()
const openPopup = (name: typeof popupName.value) => {
  popupName.value = name
  popupRef.value?.open('bottom')
}

const isShowSku = ref(false)
const localdata = ref({} as SkuPopupLocaldata)
enum SkuModeEnum {
  BOTH = 1,
  CART = 2,
  BUY = 3
}
const skuMode = ref<SkuModeEnum>(SkuModeEnum.BOTH)
const openSkuPopup = (mode: SkuModeEnum) => {
  skuMode.value = mode
  isShowSku.value = true
}
const skuPopupRef = ref<SkuPopupInstance>()
const selectedSpecs = computed(() => {
  return skuPopupRef.value?.selectArr?.join(' ').trim() || '请选择商品规格'
})


// 加入购物车事件
const onAddCart = async (e: SkuPopupEvent) => {
  await postMemberCartAPI({ skuId: e._id, count: e.buy_num })
  uni.showToast({ icon: 'none', title: '添加成功' })
  isShowSku.value = false
}

const onBuyNow = (e: SkuPopupEvent) => {
  uni.navigateTo({ url: `/pagesOrder/create/create?skuId=${e._id}&count=${e.buy_num}` })
  isShowSku.value = false
}

onLoad(() => {
  queryGoodsById()
})
</script>

<style lang="scss">
page {
  height: 100%;
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

.viewport {
  background-color: #f4f4f4;
}

.panel {
  margin-top: 20rpx;
  background-color: #fff;

  .title {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 90rpx;
    line-height: 1;
    padding: 30rpx 60rpx 30rpx 6rpx;
    position: relative;

    text {
      padding-left: 10rpx;
      font-size: 28rpx;
      color: #333;
      font-weight: 600;
      border-left: 4rpx solid #27ba9b;
    }

    navigator {
      font-size: 24rpx;
      color: #666;
    }
  }
}

.arrow {
  &::after {
    position: absolute;
    top: 50%;
    right: 30rpx;
    content: '\e6c2';
    color: #ccc;
    font-family: 'erabbit' !important;
    font-size: 32rpx;
    transform: translateY(-50%);
  }
}

/* 商品信息 */
.goods {
  background-color: #fff;

  .preview {
    height: 750rpx;
    position: relative;

    .image {
      width: 750rpx;
      height: 750rpx;
    }

    .indicator {
      height: 40rpx;
      padding: 0 24rpx;
      line-height: 40rpx;
      border-radius: 30rpx;
      color: #fff;
      font-family: Arial, Helvetica, sans-serif;
      background-color: rgba(0, 0, 0, 0.3);
      position: absolute;
      bottom: 30rpx;
      right: 30rpx;

      .current {
        font-size: 26rpx;
      }

      .split {
        font-size: 24rpx;
        margin: 0 1rpx 0 2rpx;
      }

      .total {
        font-size: 24rpx;
      }
    }
  }

  .meta {
    position: relative;
    border-bottom: 1rpx solid #eaeaea;

    .price {
      height: 130rpx;
      padding: 25rpx 30rpx 0;
      color: #fff;
      font-size: 34rpx;
      box-sizing: border-box;
      background-color: #35c8a9;
    }

    .number {
      font-size: 56rpx;
    }

    .brand {
      width: 160rpx;
      height: 80rpx;
      overflow: hidden;
      position: absolute;
      top: 26rpx;
      right: 30rpx;
    }

    .name {
      max-height: 88rpx;
      line-height: 1.4;
      margin: 20rpx;
      font-size: 32rpx;
      color: #333;
    }

    .desc {
      line-height: 1;
      padding: 0 20rpx 30rpx;
      font-size: 24rpx;
      color: #cf4444;
    }
  }

  .action {
    padding-left: 20rpx;

    .item {
      height: 90rpx;
      padding-right: 60rpx;
      border-bottom: 1rpx solid #eaeaea;
      font-size: 26rpx;
      color: #333;
      position: relative;
      display: flex;
      align-items: center;

      &:last-child {
        border-bottom: 0 none;
      }
    }

    .label {
      width: 60rpx;
      color: #898b94;
      margin: 0 16rpx 0 10rpx;
    }

    .text {
      flex: 1;
      -webkit-line-clamp: 1;
    }
  }
}

/* 商品详情 */
.detail {
  padding-left: 20rpx;

  .content {
    margin-left: -20rpx;

    .image {
      width: 100%;
    }
  }

  .properties {
    padding: 0 20rpx;
    margin-bottom: 30rpx;

    .item {
      display: flex;
      line-height: 2;
      padding: 10rpx;
      font-size: 26rpx;
      color: #333;
      border-bottom: 1rpx dashed #ccc;
    }

    .label {
      width: 200rpx;
    }

    .value {
      flex: 1;
    }
  }
}

/* 同类推荐 */
.similar {
  .content {
    padding: 0 20rpx 200rpx;
    background-color: #f4f4f4;
    display: flex;
    flex-wrap: wrap;

    .goods {
      width: 340rpx;
      padding: 24rpx 20rpx 20rpx;
      margin: 20rpx 7rpx;
      border-radius: 10rpx;
      background-color: #fff;
    }

    .image {
      width: 300rpx;
      height: 260rpx;
    }

    .name {
      height: 80rpx;
      margin: 10rpx 0;
      font-size: 26rpx;
      color: #262626;
    }

    .price {
      line-height: 1;
      font-size: 20rpx;
      color: #cf4444;
    }

    .number {
      font-size: 26rpx;
      margin-left: 2rpx;
    }
  }

  navigator {
    &:nth-child(even) {
      margin-right: 0;
    }
  }
}

/* 底部工具栏 */
.toolbar {
  position: fixed;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 1;
  background-color: #fff;
  height: 100rpx;
  padding: 0 20rpx var(--window-bottom);
  border-top: 1rpx solid #eaeaea;
  display: flex;
  justify-content: space-between;
  align-items: center;
  box-sizing: content-box;

  .buttons {
    display: flex;

    &>view {
      width: 220rpx;
      text-align: center;
      line-height: 72rpx;
      font-size: 26rpx;
      color: #fff;
      border-radius: 72rpx;
    }

    .addcart {
      background-color: #ffa868;
    }

    .buynow,
    .payment {
      background-color: #27ba9b;
      margin-left: 20rpx;
    }
  }

  .icons {
    padding-right: 10rpx;
    display: flex;
    align-items: center;
    flex: 1;

    .icons-button {
      flex: 1;
      text-align: center;
      line-height: 1.4;
      padding: 0;
      margin: 0;
      border-radius: 0;
      font-size: 20rpx;
      color: #333;
      background-color: #fff;

      &::after {
        border: none;
      }
    }

    text {
      display: block;
      font-size: 34rpx;
    }
  }
}
</style>